CVE-2026-41179 (GCVE-0-2026-41179)
Vulnerability from cvelistv5 – Published: 2026-04-23 00:03 – Updated: 2026-07-15 00:59
VLAI
EPSS
VEX
Title
RClone: Unauthenticated operations/fsinfo allows attacker-controlled backend instantiation and local command execution
Summary
Rclone is a command-line program to sync files and directories to and from different cloud storage providers. Starting in version 1.48.0 and prior to version 1.73.5, the RC endpoint `operations/fsinfo` is exposed without `AuthRequired: true` and accepts attacker-controlled `fs` input. Because `rc.GetFs(...)` supports inline backend definitions, an unauthenticated attacker can instantiate an attacker-controlled backend on demand. For the WebDAV backend, `bearer_token_command` is executed during backend initialization, making single-request unauthenticated local command execution possible on reachable RC deployments without global HTTP authentication. Version 1.73.5 patches the issue.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-24 00:00 UTC
CWE
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://github.com/rclone/rclone/security/advisor… | x_refsource_CONFIRM |
| https://github.com/rclone/rclone/commit/2a9e952b3… | x_refsource_MISC |
| https://github.com/rclone/rclone/blob/bf55d5e6d37… | x_refsource_MISC |
| https://github.com/rclone/rclone/blob/bf55d5e6d37… | x_refsource_MISC |
| https://github.com/rclone/rclone/blob/bf55d5e6d37… | x_refsource_MISC |
| https://github.com/rclone/rclone/releases/tag/v1.73.5 | x_refsource_MISC |
| https://rclone.org/changelog/#v1-73-5-2026-04-19 | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-41179 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2460988 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
3 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| rclone | rclone |
Affected:
>= 1.48.0, < 1.73.5
|
guessed | |
| Red Hat | OpenShift API for Data Protection |
cpe:/a:redhat:openshift_api_data_protection:1
|
||
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2 |
cpe:/a:redhat:acm:2
|
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"title": "github.com/rclone/rclone: Rclone: Unauthenticated local command execution via exposed RC endpoint",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41179.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "critical",
"current_release_date": "2026-08-11T00:08:34Z",
"cve": "CVE-2026-41179",
"id": "CVE-2026-41179",
"initial_release_date": "2026-04-24T01:28:07Z",
"product_status:recommended": "15",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2026-41179",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-41179.json",
"version": "6"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-41179",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-27T13:33:03.465519Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-23T12:33:39.859Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/rclone/rclone/security/advisories/GHSA-jfwf-28xr-xw6q"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "rclone",
"vendor": "rclone",
"versions": [
{
"status": "affected",
"version": "\u003e= 1.48.0, \u003c 1.73.5"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Rclone is a command-line program to sync files and directories to and from different cloud storage providers. Starting in version 1.48.0 and prior to version 1.73.5, the RC endpoint `operations/fsinfo` is exposed without `AuthRequired: true` and accepts attacker-controlled `fs` input. Because `rc.GetFs(...)` supports inline backend definitions, an unauthenticated attacker can instantiate an attacker-controlled backend on demand. For the WebDAV backend, `bearer_token_command` is executed during backend initialization, making single-request unauthenticated local command execution possible on reachable RC deployments without global HTTP authentication. Version 1.73.5 patches the issue."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 9.2,
"baseSeverity": "CRITICAL",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-78",
"description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-306",
"description": "CWE-306: Missing Authentication for Critical Function",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-20T01:36:16.265Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/rclone/rclone/security/advisories/GHSA-jfwf-28xr-xw6q",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/rclone/rclone/security/advisories/GHSA-jfwf-28xr-xw6q"
},
{
"name": "https://github.com/rclone/rclone/commit/2a9e952b38e03a96bf40c9eb6e8e22199865ee3b",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/rclone/rclone/commit/2a9e952b38e03a96bf40c9eb6e8e22199865ee3b"
},
{
"name": "https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/backend/webdav/webdav.go",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/backend/webdav/webdav.go"
},
{
"name": "https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fs/operations/rc.go",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fs/operations/rc.go"
},
{
"name": "https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fs/rc/cache.go",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fs/rc/cache.go"
},
{
"name": "https://github.com/rclone/rclone/releases/tag/v1.73.5",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/rclone/rclone/releases/tag/v1.73.5"
},
{
"name": "https://rclone.org/changelog/#v1-73-5-2026-04-19",
"tags": [
"x_refsource_MISC"
],
"url": "https://rclone.org/changelog/#v1-73-5-2026-04-19"
}
],
"source": {
"advisory": "GHSA-jfwf-28xr-xw6q",
"discovery": "UNKNOWN"
},
"title": "RClone: Unauthenticated operations/fsinfo allows attacker-controlled backend instantiation and local command execution"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-41179",
"datePublished": "2026-04-23T00:03:36.282Z",
"dateReserved": "2026-04-17T16:34:45.526Z",
"dateUpdated": "2026-05-20T01:36:16.265Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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